Pump attachment for bicycles.



No. 043,800. l Patented Feb. 20, |900` c. H. ALLEN.

PUMP ATTACHMENT FOR BIGVYCLES.

(Application :Bled Oct. 11, 1899.)

2 Sheets--Sheet l.

C IIJQIJM',

(No Model.)

Hdgsses l "il Mm/2%, @y cJ-qfforgzys,

no. 643,306. `Patented Feb, 2o, |900.

` H. ALLEN. PUMP ATTACHMENT FOB BICYCLES.

(Application med het. 11, 1899,)

2 Sheets-Sheet 2 (No Model.)

6ta-775625, 19M@ UNITED STATES PATENT OFFICE.

CLARENCE HERBERT ALLEN, OF TADMOR, OHIO.

PUMP ATTACHMENT FOR BICYCLES.

SPECIFICATION forming# e-tft er Lettere rei-.ent Ne. 643,806, dated February 20, 1906. Application filed October 11, 1899. Serial No. 733,319. (No model.)

To @ZZ whom, t naar] concern.-

Be it known that I, CLARENCE HERBERT ALLEN, a citizen of the United States, residing at Tadmor, in the county ofl Montgomery and State of Ohio, have invented a new and useful Pump Attachment for Bicycles, of which the following is a specification.

This invention relates to bicycles in general, and more particularly to the means for inflating the tires thereof; and it has for its object to provide a construction in which a portion of the frame of a bicycle will form the pump barrel and will contain a plunger through the medium of which the'air may be compressed for properly iniiating the tire.

The infiating-pump usually employed is cumbersome to carry and is inconvenient to operate, and when of a size sufficient to enable I the speedy inflation is too large to carry with the bicycle. With the present invention the pump is always in place, it adds only slightly to the weight of the bicycle, and it has a barrel of sufticient length to permit the speedy inflation of the tire.

In theedrawings forming a portion of this specification, and in which similar numerals of reference designate like and corresponding parts in the several views, Figure 1 is a side elevation of a portion of a bicycle, the seat-tube and a part of the top bar, as also the seat-post, being shown in section to show the pump piston and rod in elevation. Fig. 2 is a detail view showing a portion of the seat-tube and top bar of the bicycle-frame in section and illustrating in elevation the pumprod and its handle. Fig. 3 is a detail perspective View showing the movable bushing in the upper end of the seat-tube. Fig. 4 is a detail perspective view showing a portion of the pump-rod and illustrating the pivoted handle in its operative position.

Referring now to the drawings, 5 represents the seat-tube of a bicycle, comprising also the usual top and bottom bars 6 and 7, head 8, rear fork 9, and tie-rods 10, and which tube 5 is formed air-tight and has a plug or closure 11 at its lower end, j ust above the crank-han ger 12. Directly above this plug 11 and opening into the seat-tube is a nipple 13, having a valve therein, if desired, or provided only with a cap 14, as shown, and which cap is designed to prevent access of dirt to the interior of the seat-tube.

In the upper end of the seat-tube is remove ably inserted a bushing 15, having a bottom 1G, provided with a perforation 17, forming a guideway for a pump-rod 18, provided at its lower end with a common form of d ownwardlyL opening valved piston-head 19, this head titting snugly within the seat-tube and adapted to compress air between it and the plug 11 when it is moved downwardly. This bushing 15 is split longitudinally, as shown at 20, to correspond with the usual split 21 in the upper end of the seat-tube and which enables the rearefork bolt 23 to clamp the bushing upon the seat-post 24. This seat-post 24 is of tubular construction at its stem and is adapted to slidably fit within the bushing.

In order to facilitate the operation of the pump-piston, a handle 25 is provided, and which handle hasalongitudinal slot 26 at one side, in which is disposed the end of the rod 18, which is pivotally secured therein midway of the length of the slot.' The width of this slot is such as to easily receive the rod 18, so that when desired the handle may be disposed at right angles to the rod to present a grip for operating the rod and may then be turned to aline with the rod, as shown in Fig. 1, so that it may be moved downwardly and into the seat-tube 5, this handle lying directly within the bushing 15 and being limited in its downward movement by the bottom 16 of the bushing. After the handle has been passed into the bushing, the seat-post is adj usted and passes over the handle to inclose it, after which the bolt 22 may be operated to compress the upper end of the seat-tube and correspondingly move the bushing to grip the seatpost and hold it in position.

When it is desired to operate the pump, a flexible connection is made between the nipple 13 and the valve-casing of the tire to be inflated, after which the seat-post is removed and the handle drawn, when the pump may be operated.

It will be noted that the upper end of the bushing 15 has an outwardly-directed iiange 26, which lies upon the upper end of the seattube and limits the inward movement of the bushing. This iiange also permits the bush- IOO ing to be gripped and drawn outwardly to raise the handle 25 out of the seat-tube, after which the bushing may be pushed backwardly and the handle grasped.

IVhat is claimed is- I. In a bicycle, the combination with the seat-tube having an outlet, of a piston Within the tube, a rod connected with the piston, a bushing slidably arranged in the upper end of the tube and havin ga bottom provided With an opening through which the rod is passed, said bushing being slotted and having a terminal ange adapted to lie upon the upper end of the seat-tube, and a handle for the rod adapted to pass into the bushing.

2. In a bicycle, the combination with the seat-tube havin g an outlet, of a piston within the tube, a rod connected with the piston, a

my own I have hereto aixed my signature in 3o the presence of two Witnesses.

CLARENCE HERBERT ALLEN.

Vitnesses:

GUS. BECKER, W. H. HosKoT. 

